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Encyclopedia > Stannic acid
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Stannic acid refers to hydrated tin dioxide, SnO2. The character of this is debatable. Also called stannic hydroxide, it can be given formula Sn(OH)4. Tin dioxide, SnO2, also stannic oxide, is an oxide of tin, with tin in oxidation state +4. ...

In line with the almost contradictory names, stannic acid is amphoteric. In chemistry, an amphoteric substance is one that can react with either an acid or base (more generally, the word describes something made of, or acting like, two components). ...

Stannic acid dissolves in base to form stannate ion, Sn(OH)62-. This can then form stannate compounds. The stannate ion is SnO32- or Sn(OH)62-. A stannate (compound) is a compound containing this ion. ...

In strongly acid conditions, it forms tin(IV) ion, Sn4+.

Stannic acid is a poor oxidizer. Combined with a good reducing agent, it can form stannous hydroxide, Sn(OH)2, but is as likely to form tin metal, Sn. The most fundamental reactions in chemistry are the redox processes. ... A reducing agent is a substance used in electrochemistry that reduces another substance. ... Stannous hydroxide, Sn(OH)2, is a hydroxide of tin, with tin in oxidation state +2. ... Jump to: navigation, search General Name, Symbol, Number tin, Sn, 50 Chemical series poor metals Group, Period, Block 14, 5, p Appearance silvery lustrous gray Atomic mass 118. ...



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